Bestech BT11NP - Heat Pump Systems Wiring; Set Installer Switches; Installer Switch Settings

3
Typical Wiring Configurations
NOTE: The “Installer Switch” option will be configured in the next step.
Heat Pump Systems
1 HEAT / 1 COOL - No Auxiliary Heat
Set Installer Switch to HP
Rh* 24VoltACPower
Rc* ConnectedtoRhwithsuppliedJumperWire
O or B  ChangeoverValve [note 2]
Y1 CompressorRelay(appearsasY1on BT21NP )
G FanRelay
C 24VoltACTransformerCommon [note 1]
2 HEAT / 1 COOL - Including Auxiliary Heat (BT21NP only)
Set Installer Switch to HP
R 24VoltACPower
O or B  ChangeoverValve[note 2]
Y1 CompressorRelay(1ststageheating/cooling)
W2 AuxiliaryHeatRelay(2ndstageheating)[note 3]
W1/E EmergencyHeatRelay [note 3]
G FanRelay
C 24VoltACTransformerCommon [note 1]
*AppearsasRonBT21NP(singletransformer)
NOTES - Heat Pump Systems
[1]Ifbatteriesareinstalledthe24VoltACcommonconnectionisoptional.
[2]SelectOforcoolactiveor Bforheatactive.
[3]InstallaeldsuppliedjumperbetweentheW2andEterminalsif
 thereisnoseparateemergencyheatrelayinstalled.
Provide disconnect and overload protection as required.
Factory Setting
Switch Default Options Comments
NORM/HPNORM
 F/C F
 HE/HG HG
Set Installer Switches
4
NORM Selectforconventionalsystems
 HP Selectforheatpumpsystems
 F Selectforfahrenheittemperaturescale
 C Selectforcelsiustemperaturescale
 HG Selectforgasheat
 HE Selectforelectricheat
NOTE: The reset button should be pressed after making any changes to the
installer switches.